Mechanism for making pile fabrics



Nov. 2, 1926. 1,605,109

, W. K. HAWK MECHANISM FOR MAKING FILE FABRICS Filed March 30, 1.926 6 Sheets-Sheet 1 I P r Z5 r iiiiwiiiiilfilUWHIWIUIJLIIIflllilllllmli 4 v 8 \ZF WITNESSES: INI EN TOR.

W. Wayzwljifldwif,

BY g I I l I 1 o I I I Arroi' Nov. 2,1926. 1,605,109

W. K. HAWK MECHANISM FOR MAKING FILE FABRICS Filed March 30, 1926 6 Sheets-Sheet 2 WITNESSES: INVENTOR:

Nov. 2, 1926. 1,605,109

W. K. HAWK MECHANISM FOR MAKING FILE FABRICS Filed March 30, 1926 6 Sheets-Shed 5 FJQJ WITNESSES:

INVEN TOR:

W6. Ya/Wi lifiawlf, BY 7 4/ 4" W mm ATTOREVEY.

. INVENTOR. if. firm/1;,

6 Sheets-Sheet 4 Wag m W. K. HAWK MECHANISM FOR MAKING FILE FABRICS Flled March 30 1926 WITNESSES;

Nov. 2 1926.

W. K. HAWK MECHANISM FOR MAKING FILE FABRlCS Filed March 30, 1926 6 Sheg ts-Sheet 5 ATTORNEY IN VEN TOR:

l/l/Zzyne If Hawk,

Nov. 2 1926. 1,605,109

W. K. HAWK MECHANISM FOR MAKING FILE FABRICS Filed March 30, 1926 6 Sheets-Sheet 6 WITNESSES: INVENTOR:

Wayne find .,(%M r I 7 ATTORNY Patented Nov. 2, 1926. 1

UNITED STATES WAYN n. HAWK, on rnrnrrijnnrn m, PENNSYLVANIA,

nnc-nnnrslvr Fon MAKING TILE FABRICS.

Application filed March 30, 1926. Serial No. 98,448.

Pile carpet usually consists of linen warps, filler warps, a pile warp and linen wefts. The pile warp is looped over wires and a weft thread binds the pile warp between each pair of wires. This produces a carpet with a soft upper face and a hard under face whereas it is highly desirable that the under face be soft. Such carpet may be produced by introducing an under weft of soft thread 14) alternating with one or more of the hard linen wefts, but this requires the use of two shuttle boxes at each side of the machine.

Qwing to the necessarily fixed position of the wireslide upon looms of the Brussels- \Vilton type, the use of two shuttle boxes on the side of the loom which carries the wire slide has been considered impractical.

The primary object of my invention is to provide mechanism which will adapt looms of the Brussels-lVilton type to making pile carpets with softbacks, Another object is to adapt such looms to making pile carpets in which one shoot of soft weft is alternated withtwo shoots of linen or other hard weft.

These objects, and other advantageous ends which will be described hereinafter, I attain in the following manner, reference being had to the'accompanying drawings'in which Figure l is a fragmentary end view of a loom of the Brussels-Wilton type embodying my invention,

Figure 2 a section on line 2 2 of Figure 1,

Figure 3 a fragmentary end view similar to that ofFigu're 1 but showing my invention in a modified form,

Figure 4E a section on'line 4-4 of Figure 3 with certain parts broken away, 1 V

Figure 5 a detail of pai t of the mechanism shown in Figures 3 and 4,

Figure 6 a detail of the mechanism shown in Figure 5 but viewed at right angles to Figure 5, I

Figure 7 a fragmentary section through the fabric showing the arrangement of the threads and the looping of the pile threads over the wires, V

Figure 8 an exaggerated plan view of the fabric show-n in Figure 7 and p Figure 9 a plan view'of the picker stop: Referr ing'to Figures 1 and '2' of the drawings, thenume'ralfl indicates the frame of the loom, thedrivi'ng sli aft'ofthe loom,3 a grooved cam fixed to the shaft, 4 a rod, slidable in a bearing 5, "carrying atone end a roller 6 taking into the groove of cam 3, and carrying at the other end a cam track 7, 8 a rock shaft on which swords 9 are fixed, there being a sword at each end of the loom, 10 the shuttle race carried by the swords, 11 the reed, also carried by the swords, 12 the wire slide, 13 a lever fulcrumed upon the sword at 14, and carrying at itsupper end a support 15 for shuttle boxes 16 and 1'? disposed side by side and below the wire slide. The'lower end of the shuttle lever has a lateral extension 18 provided with a'slot 19 enclosing rock shaft 8 and carrying at its free end a roller 20 taking into cam track 7. Driving shaft 2 carries a large gear 21 meshing'with a small ar on a shaft 23. Cranks 24 on shaft 23 are connected by a link 25 with swords 9. The ratio between gears 21 and 22 is 3 to 1, consequently one revolution of drive shaft will cause swords 9'to rock foruardly and rearwardly three times. Cam 3, through its associated parts rocks shuttle box lever 18 intern'iittently relatively to swords'9, and its cam track is so formed that shuttle box 16 which carries the linenthread will be held in alignment with the shuttle race 10. during two reciprocations of the swords, the shuttle box lever then rocked to bring shuttle box17, which carries the soft thread, into alignment with the shuttle race, where it will be held during one reciprocation of the swords, and the shuttle'lever rocked in reverse direction to again bring shuttle box 16 into alignment with the shuttle race, thus completing a cycle.

A picker stick 26 is pivotally mounted on a collar 2'? fixed to rock shaft 8 and a picker stop 28 is fixed to the rock shaft; 95

Inasmuch as the shuttle boxes move laterally to bring one or the other into alignment with the shuttle race and the picker stick must act alternately upon different shuttle boxes, the slot in which the picker slides is made with an open end as shown at 29 inFigure 9, the picker stop is provided I with a correspoiuling slot into which the picker may slide, and the picker stick is connected with the'shank ofthe picker stop by a coiled spring 31 which acts to carry the picker stick beyond the shuttle box support and into slot 30. v

The modification shown in Figures 3 and i produces-the same result." The swords are rocked in the same manner as in Figures 1 and2 and'by like mechanism but the shuttle boxes are disposed one above the other and are operated by different mechanism. A sleeve 32 is loosely mounted on rock shaft 8 and held against longitudinal movement thereon by collars 33. A sleeve 34L, having a longitudinal slot 35, extends u nvardly from sleeve The shuttle boxes are carried by a rod 36 slidable in sleeve 3i and carrying at its lower end a roller 37 which takes into a cam track in a cam 38 rotatably mounted on rock shaft 8. A sprocket 39 fixed to cam 38 is connected by a sprocket chain 40 with a sprocket d1 fixed to driving shaft "2. An arm 42 extends from sleeve 34. and carries a roller 43 which takes into a cam track in a cam 44 fixed to the drive shaft. The picker stick 26 is pivotally mounted on sleeve Cam 38 will be rotated, through sprocket chain 40, at the same speed as the driving shaft but its track is so formed that shuttle box 17 carrying the linen thread, will be held in aligmnent with the shuttle race during two reciprocations of the swords, then raisedto bring shuttle box 16 into alignment with the shuttle race, the shuttle box held in aiignn'ient during one reciprocation of the swords, and then lowered to bring shut-tle box 17 into alignment with the shuttle race. The reciprocatory movement of the shuttle sup' 'mrt and shuttle boxes, due to cam 44 is such that the shuttle boxes will advance with the swords and at the same speed during a limited part of the throw of the swords and then move at a slower speed so that the maximum movement of the shuttle boxes is less than that of the swords. The shuttle box support being distinct from the shuttle race, the race will complete its movement leaving a gap between it and the shuttle box support; Upon the return movement the shuttle box support moves atslower speed than the shuttle race until the gap is closed, the picking action being effected while the gap is closed. The maximum outward movement of the shuttle box support is so limited that the shuttle boxes do not engage the wire slide.

In Figures 7 and 8, 45 indicates the wires, (.1 the filler warp, Z) the binder warps, 0 the pile thread, (Z the binder weft-s and 6 the soft weft.

lVhile I have described and shown the shuttle box support as carrying two shuttle boxes, it is obvious that the number of shuttle boxes may be increased if founddesirable.

It willbe understood that, on the other side of the loom, the usual arrangementof vertically movable shuttle boxes may be used.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is 1. In a loom having a wire guide and a sword at either end; a support, adapted to carry a plurality of shuttle boxes in such a manner as to clear the wire guide, mounted upon one of the swords, and means to oscillate the shuttle box support independently from the sword.

2, In a loom having a wire guide and a sword at either end; a support, adapted to carry a plurality of shuttle boxes in such a manner as to clear the wire guide, mount swords fixed to the rock shaft; connections between the drive shaft and the swords whereby the swords will be reciprocated; a shuttle race carried by the swords; a lever fulcrumed upon a sword; a shuttle box support carried by the lever; a plurality of shuttle boxes, disposed side by side, carried by the lever, the lever being so positioned that the shuttle boxes do not interfere with the wire guide on the loom, and connections between the drive shaft and the lever whereby the lever will be rocked to move a shuttle box into alignment with the shuttle race, then held to retain the shuttle box in such alignment during one or more reciprocations of the swords, then rocked to move the other shuttle box into alignment with the shuttle race, then held to retain the shuttle box in such alignment during one or more reciprocations of the swords, then rocked to move another shuttle box into alignment with the shuttle race.

4. In a loom, a drive shaft; a rock shaft;

swords fixed to the rock shaft; connections between the drive shaft and the swords whereby the swords will be reciprocated; a shuttle race carried by the swords; a lever fulcrumed upon a sword; a shuttle box support carried by the lever; a plurality of shuttle boxes, disposed side by side, carried by the lever, the lever being so positioned that the shuttle boxes do not interfere with the wire guide on the loom, and connections between the drive shaft and the lever where by the lever will be rocked to move a shuttle box into alignment with the shuttle race, then held to retain the shuttle box in such alignment during two reciprocations of the swords, then rocked to move the other shuttle box into alignment with the shuttle race, then held to retain the shuttle box in such alignment during a reciprocation of the swords, then rocked to move another shuttle box into alignment'with the shuttle race.

5. In a loom, a drive shaft; a rock shaft; swords fixed to the rockshaft; cm-l-nections between the drive shaft and the swords whereby the swords will be reciprocated; a shuttle race carried by the swords; a lever fulcrumed upon a sword; a shuttle box support carried by the lever; a plurality of shuttle boxes, disposed side by side, carried by the lever, the lever being so positioned that the shuttle boxes do not interfere with the wire guide on the loom; a cam fixed to the drive shaft; connections between the cam and the shuttle box lever whereby the lever will be rocked to move a shuttle box into alignment with the shuttle race, then held to retain the shuttle box in such. alignment during one or more reciprocations of the swords, then rocked to move the other shuttle box into alignment with the shuttle race, then held to retain the shuttle box in such alignment during one or more reciprocations of the swords, then rocked to move another shuttle box into alignment with the shuttle race.

6. In a loom, a drive shaft; a rock shaft; swords fixed to the rock shaft; connections between the drive shaft and the swords whereby the swords will be reciprocated; a shuttle race carried by the swords; a lever fulcrumed upon a sword; a shuttle box support carried by the lever; a plurality of shuttle boxes, disposed side by side, carried by the lever, the lever being so positioned that the shuttle boxes do not interfere with the wire guide on the loom; a cam fixed to the drive shaft; connections between the cam and theshuttle box lever whereby the lever will be rocked to move a shuttle box into alignment with the shuttle race, then held to retain the shuttle box in such alignment during two reciprocations of the swords, then rocked to move the other shuttle box into alignment with the shuttle race, then held to retain the shuttle box in such alignment during a reciprocation of the swords, then rocked to move another shuttle box into alignment with the shuttle race.

7. In a loom, a drive shaft; a rock shaft; swords fixed to the rock shaft; connections between the drive shaft and the swords whereby the swords will be reciprocated; a shuttle race carried by the swords; a lever fnlcrumed upon a sword; a shuttle box support carried by the lever; a plurality of shuttle boxes, disposed side by side, carried by the lever, the lever being so positioned that the shuttle boxes do not interfere with the wire guide on the loom; an arm projecting laterally from the lower end of the lever; a roller carried thereby; a grooved cam fixed to the drive shaft; a rod slidably mounted in the frame carrying at one end a roller taking into the cam track and, at the other end, a cam track engaging the roller on the shuttle lever, the first mentioned cam track being f so formed that, tlfirou-gh its connections wi-th the shuttle leswords, then rocked to moveanother shuttle box into alignment with the shuttle race, then held to maintain such alignment dur ing one or more reciprocations of the swords.

8. In a loom, a drive shaft; a rock shaft;

swords fixed to the rock shaft; connections between the drive shaft and the swords whereby the swords will be reciprocated; a shuttle race carried by the swords; a lever fulcrumed upon a sword; a shuttle box support carried by the lever; a plurality of shuttle boxes, disposed side by side, carried by the lever, the lever being so positioned that the shuttle boxes do not interfere with the wire guide on the loom; an arm projecting laterally from the lower end of the le, ver; a roller carried thereby; a grooved cam fixed to the drive shaft; a rod slidably mounted in the frame carrying at one end a roller taking into the cam track and, at the other end, a cam track engaging the roller on the shuttle lever, the first men'- tioned cam track being so formed that, through its connections with the shuttle lever, the lever will be rocked to move one shuttle box into alignment with the shuttle race, then held to maintain such alignment during two reciprocations of the swords, then rocked to move the other shuttle box into alignment with the shuttle race, then held to maintain it in such alignment during a reciprocation of the swords.

9. In a loom having a wire guide, a drive shaft; a rock shaft, swords fixed to the rock shaft; connections between the drive shaft and the swords whereby the swords will be reciprocated; a shuttle race carried by the swords; a lever fulcrumed upon a sword; a plurality of shuttle boxes carried by the lever and disposed side by side; connections between the drive shaft and the lever whereby the lever will be rocked to successively move the shuttle boxes into alignment with the shuttle race without interference from the wire guide, the shuttle boxes having an open ended slot adapted to receive a pickerstick; a picker stop having an open ended slot adapted to receive a picker stick and a picker stick mounted to swing with the shuttle box support and to take into the slots.

10. In a loom having a wire guide, a drive shaft; a rock shaft, swords fixed to the rock shaft; connections between the drive shaft and the swords whereby the swords will be reciprocated; a shuttle race carried by the swords; a lever fulcrumed upon a sword; a plurality of shuttle boxes carried by the lever and disposed side by side; connections between the drive shaft and the level. Whereby the lever will be rocked to successively move the shuttle boxes into alignment With the shuttle race Without interference from the Wire guide, the shuttle boxes having an open ended slot adapted to receive a picker stick; a picker stop having an open ended slot adapted to receive a picker stick and a picker stick pivotally mounted upon the rock shaft and adapted to take into the slots.

In testimony whereof I have signed my name to this specification.

WAYNE K. HAWK. 

